Cleaning device for dump bodies



Fi ied May 4. 19 22 W C SHEA CLEANING DEVICE FOR DUMP BODIES Kw VENFMW WM 5 EH?! 1541 AYWMNEWE l t/liar. 4, 192%.

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WILLIAIVI C. SHEA, 0.1? PETALUMA, CALIFORNIA.

CLEANING DEVICE Application filed May 4,

To all whom 2'2, may COW/0677b.

Be it known that I, lVILLIAM C. SHEA, a citizen of the United States, and a resident of Petaluma, county of Sonoma, and State of Qalifornia, have invented a new and useful Cleaning Device for Dump Bodies, of which the following is a specification.

The present invention relates to improvements in dump bodies for motor vehicles and has particular reference to a cleaning device for the same. Dump bodies of this character are commonly used for the hauling of sand, gravel or similar material and are operated by lifting-the front end of the same. Since they can be lifted economically only to acertain degree it frequently happens that gravity alone is not sufficient to cause all of the material to leave the body and some of it remains lodged in the forward end of the same and requires special means for removing it. If this is done by hand it requires considerable time, and it is the object of the present invention to provide means allowing this cleaning to be done with the aid of the motor power driving the vehicle. It is proposed to use for this purpose a scraper adapted to be actuatedby the rear wheels of the vehicle when the latter is moved and to be returned when the movement is reversed.

With this object in view I have illustrated the preferred form of my invention in the accompanying drawing, in which Figure 1 shows a. side elevation of a portion of the vehicle with my device attached thereto; Figure 2 a top plan view of the same vehicle, and Figures?) and 4 sectional detail views taken along lines 38 and 4-4 of Figure 2 respectively. While I have shown only the preferred form of my invention, it should be understood that variouschanges or modifications may be made within the scope of the claims hereto attached without departing from the spirit of the invention.

Of the motor vehicle (1) only certain parts are shown in the drawing, as the rear wheels (2), the frame the body (4) hinged to the frame by means of the transverse shaft (6) and a power actuated device (7) for lifting the front end of the body for the purpose of dumping its contents.

The body (4) is a rectangular boX, the rear end of which may be open, as shown in the drawing, or may be closed by means FOB DUMP BODIES.

1922. Serial No. 558,494.

of a hinged gate opening automatically as the front end of the box is lifted. My cleaning device (8) comprises a rather narrow fiat strip of metal (9) lying normally fiat on the bottom of the body at its front end. This strip is co-extensive in length with the width of the body and is provided at either end with a flange (10) rising in a vertical plane so as to lie fiat against the side (11) of the boX and slanting rearwardly as shown in Figure 1. Each of these flanges is engaged near its upper forward edge by a cable or rope (12) which is passed over a pulley mounted in the rear end of the body, wound over a drum (14) and returned to pass over a pulley (16) secured on the shaft (6) previously mentioned, from where it is led forwardly again to engage a pulley (17) mounted in front of the body to finally be secured to the lower rear edge of the flange, as shown at (18). ran eyelet (19) engaging the rope or cable before the latter is secured to the flange chan -es the direction of the pull exerted by the pulley (17) into an operative direction, as will be explained hereafter.

The two drums (14) are supported on a transverse shaft (21) which latter is journaled in brackets (22) depending from the longitudinal frame members (23 in operative proximity to the rear wheels. Small friction wh els (24) provided at the ends of the shaft (21) are adapted to engage the rear wheels of the vehicle but are normally kept out of Contact with the same by the springs (26). If the driver wishes to render the shaf and thereby the drums (14), operative, he pulls on the handle (27) provided near the drivers seat, then the rope or cable (28) engaging the long arm (29) of -a bell crank lever (31) fulcrumed in the frame, as shown at (32), pulls the same forward'so that the short arm (32) engaging a ring on the shaft (21) lowers the same and thereby brings the small wheels (24) in contact with the rear wheels of the vehicle.

It is of course apparent that since the shaft (21) is a solid one with both winding drums (14-14) secured to it, that but one of the small friction wheels (24) would function the same as two, but the use of two insures a better pull with less pressure on the rubber tires of the vehicle.

The operation of the device will be readily understood from the foregoing description. When the driver is ready to dump his load he sets in motion his power device for lifting the front end of the body. After the bulk of the load has dropped out of the boX, he drives forward a few steps, stops and reverses the truck. While reversing he pulls the handle (27) and thereby brings the friction wheels (24:) in contact with the rear wheels of the vehicle. The drums (1 L) now begin to rotate in clockwise direction, as viewed in Figure 1, and pull on the-cable passing over the pulleys (13) and engaging the upper forward edge of the scraper flanges (10). This causes the metal strip (9i, to ilt rearwardly until the slanting edge of the flange rests on the bottom of the body. in a further rearward motion of the truck the strip (9) is pulled over the bottom taking along with it whatever material has remained in the box. i /hon the scraper with its load has arrived at the rear end of the box and is ready to dump the load, the vehicle should be back in its original position so that the scrapings will be dumped on top of the main pile.

To return the scraper to its initial position the driver pulls on the handle (2'?) while the vehicle is moving forware, when the scraper will be pulled in the opposite direction.

Due to the fact that the cable passes through the eyelet (19), the metal strip will be returned to a horizontal position during or at the beginning of its forward motion.

1 claim:

1. A cleaning device for a box form dump body on a vehicle comprising a scraper extending the width of the body and normally resting on the floor of the body at its forward end, said scraper having flanges rising from its ends in a vertical plane and slanting rearwardly, and means engaging the flanges for tiltin the scraper rearwardly and pulling the same over the floor of the body whereby the hitter is scraped.

A cleaning device for a. be); form body on a vehicle coi'nprising a scraper extending the width of the body and normally resting on the floor of the body at its forward end, said scraper having flanges rising from its ends in a vertical plane and slanting rearwardly, and means engaging the flanges for tilting the scraper rearwardly, pulling the same over the floor of the body whereb the latter is scraped, and for returning the scraper to the forward end of the body.

3. A cleaning device for a box form dump body on a vehicle comprising a scraper extending the width of the body and normally resting on the-floor of the body at its forward end, said scraper having flanges rising from its ends in a vertical plane and slanting rear wardly, and means engaging the flanges for tilting the scraper rearwardly, pulling the same over the floor of the body whereby the latter is scraped, and for returning the scraper to the forward. end of the body, said means being actuated my the wheels of the vehicle.

l. A cleaning device for a box form dump body on a vehicle comprising a scraper extending the width of the body and normally resting flat on the floor of the body at its forward end, said scraper having flanges ris ing from its ends in a vertical plane, flexibledevices secured to the flanges for tilting the scraper on edge and drawing it along the floor of the body, a transverse shaft rotatably mounted under the vehicle with said flexible devices secured thereto and arranged for winding thereon to actuate said scraper as above specified.

5. A cleaning device for a box form dump body on a wheeled vehicle comprising a scraper extending the width of the body and normally resting flat on the floor of the body at its forward end, said scraper having flanges rising from its ends in a vertical plane, flexible devices secured to the flanges for tilting the scraper on edge and drawing it along the floor of the body, a transverse shaft r tatably mounted under the vehicle with said flexible devices secured thereto arranged for winding thereon to actuate said scraper as above specified, a friction wheel on said shaft and means for engaging said wheel with a wheel of the vehicle for actuation of said shaft.

6. A cleaning device for a box form dump body on a wheeled vehicle con'iprising a scraper extending the width of the body and normally resting flat on the floor of the body at its forward end, said scraper having flanges rising from its ends in a vertical plane, flexible devices secured to the flanges for tilting the scraper on edge and drawing it along the floor of the body, said devices extending forward and bacluvard from the scraper with respect to the body, idlers at both ends of the body over which said devices extend, a rotatable shaft transversely mounted to the under frame of the vehicle with said flexible devices secured to and for winding therearound, a friction wheel on said shaft and means for engaging said wheel with a wheel of the vehicle for actuation of said shaft.

WILLIAM G. SHEA. 

